No idea. I've only changed brushes in steering pumps for ships. I've encountered pumps older than myself, and they still work fine as long as the brushes are changed from time to time.
I tell my boss I can save us thousands by rebuilding our procons rather than buying new ones. Nah we keep buying new ones. I'm thinking I'll rebuild em myself and sell em on eBay.
If the brushes are expected to last longer than another part whose failure makes the unit a total loss then what do they care?
But yeah that's going to be noisy both in terms of audible noise and electrical. We have much better options these days and they aren't even that expensive.
I assumed they would just use capacitor commutated AC motors like most 'dumb' motors running on single phase.
I also assumed during the wash cycle it would just switch direction before the motor could accelerate to full speed, then the spin cycle was full speed. I didn't realize any more speed control was necessary.
I've done the same on our front loader. Though top loading machines are the exception rather than the norm here.
Hardest part of the job is just shifting the machine to get access. Once you're in, it's 5 minutes to swap them out and another 5 to scrub your hands after, because I'm an idiot that forgets gloves 🙃
After I looked at everything else the problem with our dishwasher was a malfunctioning motherboard that could "only" be replaced by a certified professional.
I at least fixed our dryer once and our vacuums as needed, so I got that at least.
Ive never heard of carbon brushes referred to as coal. Is it a language thing? They are made out graphite, which is also mined, but its different enough from say https://en.wikipedia.org/wiki/Anthracite. I think graphite is actually closer to diamond than it is to coal, in terms of chemical makeup.
Probably. In Swedish many forms of Carbon share the same word "Kol". It is the word for the element Carbon, but also the fuel Coal. Carbon brushes are called kolborstar "Carbon/Coal brushes".
34 Comments
Hawke@lemmy.world · 71 pts · 339d
Steam-powered washing machine, is it?
neidu3@sh.itjust.works · 47 pts · 339d
Carbon brushes, most likely. They wear down over time.
jubilationtcornpone@sh.itjust.works · 25 pts · 339d
What brand of washing machine uses a universal motor? That seems like a terrible idea for a high demand appliance with such a large footprint.
Edit: Apparently some older front load units use a brushed DC motor. Another commenter mentioned this as well. TIL.
neidu3@sh.itjust.works · 22 pts · 339d
No idea. I've only changed brushes in steering pumps for ships. I've encountered pumps older than myself, and they still work fine as long as the brushes are changed from time to time.
HertzDentalBar@lemmy.blahaj.zone · 10 pts · 339d
I tell my boss I can save us thousands by rebuilding our procons rather than buying new ones. Nah we keep buying new ones. I'm thinking I'll rebuild em myself and sell em on eBay.
sploosh@lemmy.world · 9 pts · 339d
If the brushes are expected to last longer than another part whose failure makes the unit a total loss then what do they care?
But yeah that's going to be noisy both in terms of audible noise and electrical. We have much better options these days and they aren't even that expensive.
Agent641@lemmy.world · 13 pts · 339d
Haven't unlocked electricity in the tech tree yet.
crank0271@lemmy.world · 9 pts · 339d
They sure don't make 'em like they used to
INHALE_VEGETABLES@aussie.zone · 20 pts · 339d
What is it?
remotelove@lemmy.ca · 31 pts · 339d
Motor brush. Its a chunk of carbon that makes contact with a bit on the motor shaft.
Yondoza@sh.itjust.works · 21 pts · 339d
Hol up. Do most washers use brushed DC motors??? Why? That's such a strange choice of motor for that application.
lemming741@lemmy.world · 14 pts · 339d
Older front loaders i think. The speed and direction control is much simpler compared to modern BLDC.
someguy3@lemmy.world · 5 pts · 339d
BLDC?
Cypher@lemmy.world · 9 pts · 339d
Yondoza@sh.itjust.works · 4 pts · 339d
I assumed they would just use capacitor commutated AC motors like most 'dumb' motors running on single phase.
I also assumed during the wash cycle it would just switch direction before the motor could accelerate to full speed, then the spin cycle was full speed. I didn't realize any more speed control was necessary.
swizzlestick@lemmy.zip · 1 pts · 339d
I've done the same on our front loader. Though top loading machines are the exception rather than the norm here.
Hardest part of the job is just shifting the machine to get access. Once you're in, it's 5 minutes to swap them out and another 5 to scrub your hands after, because I'm an idiot that forgets gloves 🙃
lemmyman@lemmy.world · 13 pts · 339d
I don't know about "most" but Universal motors use brushes and can run on AC.
turdcollector69@lemmy.world · 1 pts · 338d
Value engineering: engineering the value right out of the product and into the shareholder pockets
someguy3@lemmy.world · 25 pts · 339d
It's a big metal box you put your dirty clothes in, but that's not important right now.
INHALE_VEGETABLES@aussie.zone · 6 pts · 339d
Take your up vote and GET!
JollyBrancher@sh.itjust.works · 18 pts · 339d
After I looked at everything else the problem with our dishwasher was a malfunctioning motherboard that could "only" be replaced by a certified professional. I at least fixed our dryer once and our vacuums as needed, so I got that at least.
MNByChoice@midwest.social · 13 pts · 339d
Great Job! Washing machine repair is one of the great skills. Mostly because they are heavy and new ones take a bit to arrive.
zaphod@sopuli.xyz · 3 pts · 339d
Except for the control electronics they're relatively simple machines.
saltesc@lemmy.world · 13 pts · 339d
Two days ago my partner fixed the washing machine while I watched a YT video on how to fix a dishwashing machine.
I had to remind them I taught them how to do an oil change, but it didn't do much for my handiness points.
cuboc@lemmy.world · 7 pts · 339d
I am proud of you, sir!
AoxoMoxoA@lemmy.world · 6 pts · 339d
Fine job 🦾
imetators@lemmy.dbzer0.com · 3 pts · 339d
What's that for a component?
not@lemmy.dbzer0.com · 2 pts · 338d
Coal. Transfers electricity between the motor housing and the rotor inside the motor.
GorGor@startrek.website · 4 pts · 338d
Ive never heard of carbon brushes referred to as coal. Is it a language thing? They are made out graphite, which is also mined, but its different enough from say https://en.wikipedia.org/wiki/Anthracite. I think graphite is actually closer to diamond than it is to coal, in terms of chemical makeup.
Storspoven@feddit.nu · 6 pts · 338d
Probably. In Swedish many forms of Carbon share the same word "Kol". It is the word for the element Carbon, but also the fuel Coal. Carbon brushes are called kolborstar "Carbon/Coal brushes".
hanrahan@slrpnk.net · 2 pts · 338d
Official member of the SuperfixeruperMan Club.
ikidd@lemmy.world · 2 pts · 338d
That's a massive brush. Guess they wanted it to last long enough to get out of warranty.
DarrinBrunner@lemmy.world · -3 pts · 339d
Your hands are dirty.
ryannathans@aussie.zone · 20 pts · 339d
Mans working with coals
Lemmyoutofhere@lemmy.ca · 13 pts · 339d
Your mom is dirty.